Automakers criticized the European Commission's proposal to effectively ban the sale of gasoline and diesel cars in the bloc by the middle of the next decade.
The Commission's new climate package to slash planet-warming CO2 emissions, announced Wednesday, includes a target to reduce CO2 from new cars sold in the bloc to zero by 2035. The plan means it will not be possible to sell new combustion-engine cars in the EU from that date.
Banning a single technology "is not a rational way forward" at this stage, the ACEA association of European automakers said.
"We urge all EU institutions to focus on innovation rather than mandating, or effectively banning, a specific technology," ACEA President Oliver Zipse said in a statement.
Zipse, who is BMW Group CEO, currently holds the presidency of ACEA, which rotates among the chief executives at Europe's automaker.
As part of the Commission's Fit for 55 package announced on Wednesday, officials also are seeking a 55 percent reduction of CO2 emissions by 2030 compared with 2021, lifting an earlier target of a 37.5 percent reduction by the end of the decade.
Zipse said the 2030 proposal requires a massive further increase in market demand for electric vehicles in a short time frame.
"Without significantly increased efforts by all stakeholders -- including member states and all involved sectors -- the proposed target is simply not viable," he said.
Germany's VDA auto association also criticized the 2035 phase-out date for combustion engines.
"With the fleet limit value of zero grams planned for 2035, the EU Commission is in effect proposing a ban on internal combustion engines -- including in hybrids," said VDA President Hildegard Müller.
"This is anti-innovation and the opposite of open to technology. It also restricts consumers' freedom of choice," Mueller said in a statement.
The impact on jobs in this sector will be considerable, but the EU Commission has not made any assessment of the social consequences of its plans, the VDA said.
Europe's suppliers' association, CLEPA, said the 2035 ban is "not the most effective or efficient way to climate neutral transport" in the EU.
"It may not even get us there," said the association's secretary general, Sigrid de Vries, in a statement.
De Vries said internal combustion engines are climate neutral when running on sustainable renewable fuels and battery-electric vehicles are climate neutral when charged with renewable electricity.
"The priority should be renewable fuels and electricity, not a ban on a technology," de Vries said.